6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2026-04-21 23:17:16 +00:00
Code Issues Projects Releases Wiki Activity

Reorder shuffle and binary operation.

Browse Source 
This patch enables transformations:

    BinOp(shuffle(v1), shuffle(v2)) -> shuffle(BinOp(v1, v2))
    BinOp(shuffle(v1), const1) -> shuffle(BinOp, const2)

They allow to eliminate extra shuffles in some cases.

Differential Revision: http://reviews.llvm.org/D3525


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208488 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Serge Pavlov
2014-05-11 08:46:12 +00:00
parent 4ccf0ebb19
commit 86118b4532
9 changed files with 300 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/Transforms/InstCombine/InstCombineAddSub.cpp
+12
View File
@@ -920,6 +920,9 @@ Instruction *InstCombiner::visitAdd(BinaryOperator &I) {
bool Changed = SimplifyAssociativeOrCommutative(I);
Value *LHS = I.getOperand(0), *RHS = I.getOperand(1);
if (Value *V = SimplifyVectorOp(I))
return ReplaceInstUsesWith(I, V);
if (Value *V = SimplifyAddInst(LHS, RHS, I.hasNoSignedWrap(),
I.hasNoUnsignedWrap(), DL))
return ReplaceInstUsesWith(I, V);
@@ -1195,6 +1198,9 @@ Instruction *InstCombiner::visitFAdd(BinaryOperator &I) {
bool Changed = SimplifyAssociativeOrCommutative(I);
Value *LHS = I.getOperand(0), *RHS = I.getOperand(1);
if (Value *V = SimplifyVectorOp(I))
return ReplaceInstUsesWith(I, V);
if (Value *V = SimplifyFAddInst(LHS, RHS, I.getFastMathFlags(), DL))
return ReplaceInstUsesWith(I, V);
@@ -1370,6 +1376,9 @@ Value *InstCombiner::OptimizePointerDifference(Value *LHS, Value *RHS,
Instruction *InstCombiner::visitSub(BinaryOperator &I) {
Value *Op0 = I.getOperand(0), *Op1 = I.getOperand(1);
if (Value *V = SimplifyVectorOp(I))
return ReplaceInstUsesWith(I, V);
if (Value *V = SimplifySubInst(Op0, Op1, I.hasNoSignedWrap(),
I.hasNoUnsignedWrap(), DL))
return ReplaceInstUsesWith(I, V);
@@ -1540,6 +1549,9 @@ Instruction *InstCombiner::visitSub(BinaryOperator &I) {
Instruction *InstCombiner::visitFSub(BinaryOperator &I) {
Value *Op0 = I.getOperand(0), *Op1 = I.getOperand(1);
if (Value *V = SimplifyVectorOp(I))
return ReplaceInstUsesWith(I, V);
if (Value *V = SimplifyFSubInst(Op0, Op1, I.getFastMathFlags(), DL))
return ReplaceInstUsesWith(I, V);